[INFO] fetching crate ungoliant 2.0.0...
[INFO] checking ungoliant-2.0.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate ungoliant 2.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate ungoliant 2.0.0
[INFO] finished tweaking crates.io crate ungoliant 2.0.0
[INFO] tweaked toml for crates.io crate ungoliant 2.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ungoliant 2.0.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ungoliant 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unic-ucd v0.9.0
[INFO] [stderr]   Downloaded ut1_blocklist v0.3.0
[INFO] [stderr]   Downloaded libflate_lz77 v1.2.0
[INFO] [stderr]   Downloaded warc v0.3.1
[INFO] [stderr]   Downloaded libflate v1.3.0
[INFO] [stderr]   Downloaded unic-ucd-name_aliases v0.9.0
[INFO] [stderr]   Downloaded unicode-script v0.5.5
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded scalable_bloom_filter v0.1.1
[INFO] [stderr]   Downloaded wasm-streams v0.2.3
[INFO] [stderr]   Downloaded rustls-pemfile v1.0.2
[INFO] [stderr]   Downloaded oxilangtag v0.1.3
[INFO] [stderr]   Downloaded typed-builder v0.5.1
[INFO] [stderr]   Downloaded unic-ucd-case v0.9.0
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded serde_derive_internals v0.26.0
[INFO] [stderr]   Downloaded runiq-lib v1.2.2
[INFO] [stderr]   Downloaded unic-ucd-block v0.9.0
[INFO] [stderr]   Downloaded bytelines v2.4.0
[INFO] [stderr]   Downloaded futures-macro v0.3.26
[INFO] [stderr]   Downloaded cmake v0.1.49
[INFO] [stderr]   Downloaded ipnet v2.7.1
[INFO] [stderr]   Downloaded clang-sys v1.6.0
[INFO] [stderr]   Downloaded which v4.4.0
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.2
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded schemars_derive v0.8.11
[INFO] [stderr]   Downloaded dyn-clone v1.0.10
[INFO] [stderr]   Downloaded futures-executor v0.3.26
[INFO] [stderr]   Downloaded unic-ucd-common v0.9.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.13
[INFO] [stderr]   Downloaded test-log v0.2.11
[INFO] [stderr]   Downloaded zerocopy v0.3.0
[INFO] [stderr]   Downloaded schemars v0.8.11
[INFO] [stderr]   Downloaded futures v0.3.26
[INFO] [stderr]   Downloaded libm v0.2.6
[INFO] [stderr]   Downloaded cfasttext-sys v0.7.6
[INFO] [stderr]   Downloaded tlsh-fixed v0.1.1
[INFO] [stderr]   Downloaded rayon-core v1.10.2
[INFO] [stderr]   Downloaded avro-rs v0.13.0
[INFO] [stderr]   Downloaded ctclib-pp v0.2.0
[INFO] [stderr]   Downloaded reqwest v0.11.14
[INFO] [stderr]   Downloaded rayon v1.6.1
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded hyper v0.14.24
[INFO] [stderr]   Downloaded webpki-roots v0.22.6
[INFO] [stderr]   Downloaded rustls v0.20.8
[INFO] [stderr]   Downloaded unic-ucd-name v0.9.0
[INFO] [stderr]   Downloaded ctclib-kenlm-sys v0.1.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.2.0
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] [stderr]   Downloaded oscar-io v0.2.3
[INFO] [stderr]   Downloaded fasttext v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b65a7784401377386e2d439bd00dc736bc2853d5ee630a9a4f7784bf5f386126
[INFO] running `Command { std: "docker" "start" "-a" "b65a7784401377386e2d439bd00dc736bc2853d5ee630a9a4f7784bf5f386126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b65a7784401377386e2d439bd00dc736bc2853d5ee630a9a4f7784bf5f386126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65a7784401377386e2d439bd00dc736bc2853d5ee630a9a4f7784bf5f386126", kill_on_drop: false }`
[INFO] [stdout] b65a7784401377386e2d439bd00dc736bc2853d5ee630a9a4f7784bf5f386126
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bc880b64a5e1f9a7dbf668fe3d27f40f65518a7e154da35faa07b0de5193c8f
[INFO] running `Command { std: "docker" "start" "-a" "0bc880b64a5e1f9a7dbf668fe3d27f40f65518a7e154da35faa07b0de5193c8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0bc880b64a5e1f9a7dbf668fe3d27f40f65518a7e154da35faa07b0de5193c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc880b64a5e1f9a7dbf668fe3d27f40f65518a7e154da35faa07b0de5193c8f", kill_on_drop: false }`
[INFO] [stdout] 0bc880b64a5e1f9a7dbf668fe3d27f40f65518a7e154da35faa07b0de5193c8f